BBC4

BBC4 seems to have some good stuff.

Like the Now Show:
http://www.bbc.co.uk/radio4/comedy/nowshow.shtml
(this bit is good) http://onegoodmove.org/1gm/1gmarchive/2007/07/petulant_pricks.html

...and the text version of THE HITCHHIKER ADVENTURE GAME by Douglas Adams - 20th Anniversary Edition -- now with graphics.
http://www.bbc.co.uk/radio4/hitchhikers/